Means for lubricating machine-tools.



W. F. MCC'ARTY. MEANS FOR LUBRICAHNG MACHINE TooLs.

l APPLICATION FILED .IULY 22,19182 www I y IIINII ||||III W. F. IVICCARTY.

MEANS FOR LUBRICATING MACHINE TOOLS. APPLICATION ILED JULY 22.1918.

1,293,61 l. Patented Feb. 4, 1919.

3 SHEETS-SHEET 2.

W. F. MCCARTY. MEANS FOB LUBRICATING MACHINE TOOLS. APPLICATION FILED IuLY 22. IsI.

Lwl 1., l Peeented Feb.4,1919.

3 SHEETS-SHEET 3.

V,I ITam/EVS ne sirname 4ri WILLIAM F. llcCARTY, OF DEFIANCE, OHIO, ASSIGNOR TO DEFIANCE MACHIN WORKS, 0F DEFIANCE, OHIO, .A CORPORATION OF OHIO.

' MEANS FOR LUBRICATING MACHINE-TOOLS.

Letters Paten-t of the United States for a.

horizontal borin drilling, milling and tapping machine, erial No. 240,655, led by me on June 18` 1918.

-The object of the invention is to provide a new and improved means-for lubricating the bearings, gears and clutch members contained in the vertical adjustable head of a machine tool of the character mentioned,

the arrangement` being such as to insure a continuous and effective lubricating of the said parts while the machine is running and without requiring any attention from the attendant of the machine. Another object is to permit of using the lubricant over and over againthus reducing the waste of the lubricant to a minimum. Another object is to ipermit the use of a completely closed head or casing to prevent the entry of dust and other foreign substances into the head and to prevent the attendant from becoming entangled in the moving parts.

-With these and other objects in View, the invention consists of cer-tain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in'

which similar characters of lreference indicate corresponding parts in al1 the views.

Figure 1 is a sectional front elevation of the vertical movable head of amachine tool provided with the imiproved lubricating means;

Fig. 2 is a sectional plan view of the same; and

Fig. 3 is an enlarged cross section of the same on the line 3-3 of Fig. 2.

The means for lubricating machine tools are shown applied to the driving mechanism for the spindle 34 of the horizontal boring, drilling, milling and tapping machine above Specification of Letters Patent.

Application led July 22, 1918. Serial No. 246,149.

referred to. The spindle 34 is mounted in a closed head creasing 33 mountedto slide up or down on guideways 32 formed on the upright 31 of the body of the machine. rThe spindle 34 is driven from a vertically disjposed revolving shaft 123 extending with its in mesh with a gear wheel 138 mounted to rotate loosely on a sleeve 139 rotating with the spindle 34. The gear wheel 136 is in mesh with a gear wheel 140 mounted to rotate loosely on the sleeve 139 and the opposi-te faces of thc gear wheels 138 and 140 are provided with clutch members -141 and 142 adapted to be engaged byl clutch members 143, 144 of a double clutch 145 slidable and rotatably and rotatably connected by a key 146 with the spindle 34 and its sleeve 139.

`The means for lubricating the parts contained within the head or casing 33 and described above are arranged as follows: 0n the upper reduced end 160 of the shaft 123 arranged in the under side of the cap 163.

From the manifold 176 lead a number of pipes 180, 181, 182, 183 and 184 extending within the head 33 and of which the pipe 180 delivers oil to the bearing 134, the pipe 181 delivers oil to the bearing 150, the pipe 182 delivers oil to the bearing 133, the pipe 183 delivers oil to the bearing 151, and the pipe 184 discharges oil into the head in tfront of a Window 190 arranged in the front -of the head or casing 33 to enable the attendant of the machine to see. at a glance whether the pump 162 is running or not. 1t is understood that as long as the pum isin proper order and running, the oil discharged by the pipe 184 is visible through the Window 190, but when the pump is out of order and no oil is discharged by the pipe 184 then it is an indication to the attendant that something is wron T with the pump. It will be noticed y that lthe oil flows from the manifold 176 by gravity through the several pipes 180, 181, 182 and 183 to insure a proper lubrication of the bearings 133, 134, 150 and 151, and the oil passing out of the bearings ows down in the head 33 to 'be again pumped up by the pump 162 by way of the-suction pipe 171. It will be noticed that sufficient 011 is maintained in the head or casing 33 to keep the revolving parts on the spindle 34 and its sleeve 139 running in the oil to insure proper lubrication'of the gearing and clutch mechanism. It is understood' that the oil taken up by the gear Wheels 135 and 140 is transmitted to the gear wheels 137, 135 and 136 'to insure proper lubrication of the gear Wheels. The bearing receives oil by leakage from the pump 161 and the oil passing out of this bearing 125 readily finds its way to the gear Wheels and 131 to lubricate the same. The thrust bearings 152 and 153 run in the oil contained in the lower portion of the head or casing 33, it being understood that the lower portion of the casing forms an oil well.`

From the foregoing it'will be seen that a continuous and effective lubricating of the parts in the head or casing 33 is insured While lthe machine is running and Without requiring any attention from the attendant of the machine. It will also be noticed that the lubricant is used over and over again thus reducing the waste of lubricant -tova minimum. The attendant in charge of the machine can readily see at a glance whether the pump is doing its Work or not. The head is completely closed to prevent dust and extraneous matter from passing into the head, at the same time protecting the attendant from injury by the running parts mounted in the head.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a means for lubricating machine tools, the combination of a closed casing adaptedV to contain a liquid lubricant and provided with spindle bearings and shaft bearings, a horizontal spindle journaled in the spindle bearings, a driving gear for the said spindle adapted to run in the said lubricant, the said driving gearhaving a horizontal driven shaft and journaled in the said shaft bearings, a vertically disposed driving Masami 2. In a means for lubricating machine' tools, the combination of a closed casing adapted to contain a liquid lubricant and provided With spindle bearings and Shaft bearings, a spindle journaled in the spindle bearings, a driving gear for the said spindle and adapted to run 1n the said lubricant, the

sind driving gear having a horizontal driven shaft journ-aled in the said shaft bearings, a `vertically disposed driving shaft extending into the said casing and geared with the said driven gear shaft, a pumprmounted in the said casing and having an actuating member rotating with the upper end of the said driving shaft, the said pump being located above the said gearing and having a suction lpipe extending into the lubricant contained in the casing, a manifold into which discharges the pump, a plurality of lubricant distributing pipes leading from the said manifold to the said bearings, anfobservation p ipe extending from the said manifold and dlsch'arging into the casing, and an 0bservation window on the said casing in front of the discharge end of the saidobservation pipe.

3. In a means for lubricating machine tools, the combination of a spindle head having a closed casing adapted to contain oil, horizontal bearings arranged in the said casing, a horizontal spindle journaled in sundry of the said bearings, a horizontal driven shaft journaled in others of the said bearings, a gearing connecting the 'said spindle with the said driven shaft, the gear-v ing members on the said spindle extending into the oil contained in the said casing, a vertical driving shaft extending into the said casing, a pump in the upper portion of the casing and having an actuating member driven by the said driving shaft, the pump having a suction pipe extending into the oil in the casing, a manifold mounted on the casing and into which'discharges the' said pump, and oil distributing pipes leading from the'said manifold to the said bearings to conduct the oil by gravity to the bearings. 11

WILLI-AM F. MGCARTY. 

